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Kronosaurus
Taxonomy
Kronosaurus was named by Longman (1924) [Sepkoski's age data: K l].
It was assigned to Plesiosauria by Sepkoski (2002); to Pliosauridae by Longman (1924), White (1940), Carroll (1988), O'Keefe (2001), Kear (2003), Ketchum and Benson (2010), Ketchum and Benson (2011) and Hampe (2013); and to Brachaucheninae by Benson et al. (2013) and Benson and Druckenmiller (2014).
It was assigned to Plesiosauria by Sepkoski (2002); to Pliosauridae by Longman (1924), White (1940), Carroll (1988), O'Keefe (2001), Kear (2003), Ketchum and Benson (2010), Ketchum and Benson (2011) and Hampe (2013); and to Brachaucheninae by Benson et al. (2013) and Benson and Druckenmiller (2014).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1924 | Kronosaurus Longman p. 26 |
| 1940 | Kronosaurus White p. 466 |
| 1988 | Kronosaurus Carroll |
| 2001 | Kronosaurus O'Keefe p. 19 fig. 20 |
| 2002 | Kronosaurus Sepkoski |
| 2003 | Kronosaurus Kear |
| 2010 | Kronosaurus Ketchum and Benson p. 15 |
| 2011 | Kronosaurus Ketchum and Benson p. 126 |
| 2013 | Kronosaurus Benson et al. |
| 2013 | Kronosaurus Hampe |
| 2014 | Kronosaurus Benson and Druckenmiller figs. 2-3 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Kronosaurus Longman 1924
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†Kronosaurus boyacensis Hampe 1992
†Kronosaurus queenslandicus Longman 1924
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. P. Kear 2003 | "Large-bodied pliosaurid up to and probably in excess of 9 m. Snout and mandibular rostrum both long and narrow. Anterior interpterygoid vacuity absent; ectopterygoid and pterygoid form lateral flanges that meet in a short dished, mid-line contact ventrolateral to the posterior pterygoid vacuity. Premaxilla bears four large caniniform teeth. Mandibular symphysis elongate and extending back to sixth tooth position. Teeth conical and coarsely striated without distinct carinae. Twelve cervical vertebrae with single-headed cervical ribs." |
Measurements
No measurements are available
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| Source: superf = superfamily, o = order | |||||
| References: Hampe 2005, Kiessling 2004 | |||||
Age range: base of the Late/Upper Aptian to the top of the Late/Upper Albian or 122.46000 to 99.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian | Australia (Queensland) | K. queenslandicus (100235) | |
| Aptian | Australia (New South Wales) | K. queenslandicus (60762) | |
| Late/Upper Aptian | Colombia (Boyacá) | K. boyacensis (127411) | |
| Late/Upper Albian | Australia (Queensland) | K. queenslandicus (110465) |